LIF・LLS法による燃料液滴火炎内のOHおよびすす濃度分布測定(熱工学,内燃機関,動力など)

概要

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An experimental study was performed to clarify the flame structure of a burning fuel droplet. Both OH and soot concentration distributions were measured along diametrical line passing through the center of fuel droplet and the front stagnation point of a fuel droplet flame in steady air stream. The laser induced fluorescence and the laser light scattering techniques were applied for the measurement of OH and soot concentration distributions, respectively. An Nd: YAG laser-pumped pulsed dye laser emitting monochromatic radiation at a wavelength of 283.56 nm was used as the light source for these measurements. Fuel employed were n-heptane, n-hexadecane, benzen, methanol and their mixtures. The results showed that the highly sooting region was located deep inside the flame front, and near the flame front was located the maximum of OH concentration. An increase in the relative humidity in the air stream caused the decrease of OH concentration.
社団法人日本機械学会の論文
2004-12-25